The beginning of this years finale of The Sarah Jane Adventures starts today with part one of Goodbye, Sarah Jane Smith, which see’s the return of Luke from University. Check out the synopsis and schedule for SJA this week:

Sarah Jane faces her saddest day, as she realises that no one can defend the Earth forever. She's saved the world so many times, but must now hand over the task to safer hands. Clyde and Rani are distraught, and the forces of darkness gather as the inevitable day approaches. A new regime begins at Bannerman Road! Clyde and Rani must face the fact that nothing lasts forever – but can they still unite as a team, to face a new and deadly threat from outer space? Or is the old gang finished for good?

Today 
Goodbye, Sarah Jane Smith Part One – 5.15pm – CBBC
Sarah Jane’s Alien Files – 5.45pm – CBBC

Tomorrow  
Goodbye, Sarah Jane Smith Part Two – 5.15pm – CBBC

Wednesday  
Goodbye, Sarah Jane Smith Part One (repeat) – 4.30pm – BBC One

Thursday 
Goodbye, Sarah Jane Smith Part Two (repeat) – 4.30pm – BBC One

Come back after part one for the part two trailer!